Reverend Charles Williams II heads the Detroit chapter of the National Action Network. He says he’s confident federal leaders will take action on the Martin case because it “touches the hearts of people in power.”

“Remember, President Obama himself came out and said that if he had a son, it would look like Trayvon. So he even understands--let me be honest with you--what it means to be a black man in America,” says Williams. “Eric Holder understands that, too.”

Activists will gather at federal buildings in Detroit and across the country this Saturday to build pressure for a federal prosecution.